I have it on PC. It plays well for a while, but then, WHAM. ~10 FPS. No solution yet here. Did try lowering Ambient Occlusion to SAO and reducing Lighting to Low. And it did seem to resolve the lag, but then the lights went CRAZY and the cutscene in the first vault would suddenly have a purple or green overlay or go all black. I think that was the side effect of lowering the lights setting. Pretty Horrible! Missed the entire cutscene.
Have you guys tried removing your current graphics driver with DDU and then installing another one? For me it had a significant impact on the loading time and a bit on the framerate.
